20023920

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1$

素因数の和:192

約数の個数: 240

約数和(自身を含む): 80084160

約数和(自身を除く): 60060240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 29, 30, 35, 36, 40, 42, 45, 48, 56, 58, 60, 63, 70, 72, 80, 84, 87, 90, 105, 112, 116, 120, 126, 137, 140, 144, 145, 168, 174, 180, 203, 210, 232, 240, 252, 261, 274, 280, 290, 315, 336, 348, 360, 406, 411, 420, 435, 464, 504, 522, 548, 560, 580, 609, 630, 685, 696, 720, 812, 822, 840, 870, 959, 1008, 1015, 1044, 1096, 1160, 1218, 1233, 1260, 1305, 1370, 1392, 1624, 1644, 1680, 1740, 1827, 1918, 2030, 2055, 2088, 2192, 2320, 2436, 2466, 2520, 2610, 2740, 2877, 3045, 3248, 3288, 3480, 3654, 3836, 3973, 4060, 4110, 4176, 4795, 4872, 4932, 5040, 5220, 5480, 5754, 6090, 6165, 6576, 6960, 7308, 7672, 7946, 8120, 8220, 8631, 9135, 9590, 9744, 9864, 10440, 10960, 11508, 11919, 12180, 12330, 14385, 14616, 15344, 15892, 16240, 16440, 17262, 18270, 19180, 19728, 19865, 20880, 23016, 23838, 24360, 24660, 27811, 28770, 29232, 31784, 32880, 34524, 35757, 36540, 38360, 39730, 43155, 46032, 47676, 48720, 49320, 55622, 57540, 59595, 63568, 69048, 71514, 73080, 76720, 79460, 83433, 86310, 95352, 98640, 111244, 115080, 119190, 138096, 139055, 143028, 146160, 158920, 166866, 172620, 178785, 190704, 222488, 230160, 238380, 250299, 278110, 286056, 317840, 333732, 345240, 357570, 417165, 444976, 476760, 500598, 556220, 572112, 667464, 690480, 715140, 834330, 953520, 1001196, 1112440, 1251495, 1334928, 1430280, 1668660, 2002392, 2224880, 2502990, 2860560, 3337320, 4004784, 5005980, 6674640, 10011960, 20023920]

約数ペア:

[(1, 20023920), (2, 10011960), (3, 6674640), (4, 5005980), (5, 4004784), (6, 3337320), (7, 2860560), (8, 2502990), (9, 2224880), (10, 2002392), (12, 1668660), (14, 1430280), (15, 1334928), (16, 1251495), (18, 1112440), (20, 1001196), (21, 953520), (24, 834330), (28, 715140), (29, 690480), (30, 667464), (35, 572112), (36, 556220), (40, 500598), (42, 476760), (45, 444976), (48, 417165), (56, 357570), (58, 345240), (60, 333732), (63, 317840), (70, 286056), (72, 278110), (80, 250299), (84, 238380), (87, 230160), (90, 222488), (105, 190704), (112, 178785), (116, 172620), (120, 166866), (126, 158920), (137, 146160), (140, 143028), (144, 139055), (145, 138096), (168, 119190), (174, 115080), (180, 111244), (203, 98640), (210, 95352), (232, 86310), (240, 83433), (252, 79460), (261, 76720), (274, 73080), (280, 71514), (290, 69048), (315, 63568), (336, 59595), (348, 57540), (360, 55622), (406, 49320), (411, 48720), (420, 47676), (435, 46032), (464, 43155), (504, 39730), (522, 38360), (548, 36540), (560, 35757), (580, 34524), (609, 32880), (630, 31784), (685, 29232), (696, 28770), (720, 27811), (812, 24660), (822, 24360), (840, 23838), (870, 23016), (959, 20880), (1008, 19865), (1015, 19728), (1044, 19180), (1096, 18270), (1160, 17262), (1218, 16440), (1233, 16240), (1260, 15892), (1305, 15344), (1370, 14616), (1392, 14385), (1624, 12330), (1644, 12180), (1680, 11919), (1740, 11508), (1827, 10960), (1918, 10440), (2030, 9864), (2055, 9744), (2088, 9590), (2192, 9135), (2320, 8631), (2436, 8220), (2466, 8120), (2520, 7946), (2610, 7672), (2740, 7308), (2877, 6960), (3045, 6576), (3248, 6165), (3288, 6090), (3480, 5754), (3654, 5480), (3836, 5220), (3973, 5040), (4060, 4932), (4110, 4872), (4176, 4795)]